Does Beijing’s Smog Lead to Increased Respiratory Diseases?
The composition of smog is very complex, including hundreds of types of atmospheric chemical particles. The main harmful components to health are the aerosol particles with diameters less than 10 micrometers, which can directly enter and adhere to the human respiratory tract and alveoli. Long-term exposure to this environment may trigger lung cancer. For patients with chronic respiratory diseases such as asthma, chronic bronchitis, obstructive pulmonary emphysema, and chronic obstructive pulmonary disease, smoggy weather can cause acute exacerbation or acute worsening of the condition.
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